Creating operation log backup files

Before you start to use the functions described in Automatically switching operation logs or Manually switching operation logs, it is necessary to create backup output data sets (generation files) that are specified for the Command Execution Log Backup Output Data Set Name (OPLCMDBK) and the File Access Log Backup Output Data Set Name (OPLFILEBK) in the System Environment Settings.

Creation of Backup Output Data Set

To back up the operation logs, it is necessary to define backup output data sets as generation files in advance. A JCL example that defines generation files is shown below.

[Example of JCL]

//GDGAMS   JOB  CLASS=A,MSGCLASS=B                                              
//STEP1    EXEC PGM=IDCAMS,REGION=2048K                                         
//SYSPRINT DD   SYSOUT=*                                                        
//SYSIN    DD   *                                                               
DEFINE GDG(NAME(HULFT.OPLCMD.BKUP) LIMIT(5) SCR)                                
DEFINE GDG(NAME(HULFT.OPLFILE.BKUP) LIMIT(5) SCR)                               
/*                                                                              
//

Parameter Name	Value	Description
NAME	HULFT.OPLCMD.BKUP	Command Execution Log Backup Output Data Set Name
NAME	HULFT.OPLFILE.BKUP	File Access Log Backup Output Data Set Name

For details on generation files, refer to the manual for the operating system.

= Remarks =

To back up only the Command Execution Log, it is not necessary to create generation files for the File Access Log backup output data set.
To back up only the File Access Log, it is not necessary to create generation files for the Command Execution Log backup output data set.